Effects of salvianolic acid on cerebral perfusion in patients after acute stroke: A single‑center randomized controlled trial

Peng,Jian‑Wei; Liu,Yuan; Meng,Gai; Zhang,Jin‑Yan; Yu,Lian‑Fang

doi:10.3892/etm.2018.6444

Effects of salvianolic acid on cerebral perfusion in patients after acute stroke: A single‑center randomized controlled trial

Authors:
- Jian‑Wei Peng
- Yuan Liu
- Gai Meng
- Jin‑Yan Zhang
- Lian‑Fang Yu
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Affiliations: Department of Neurology, People's Liberation Army 153 Central Hospital, Zhengzhou, Henan 450041, P.R. China, Postgraduate Department, Xinxiang Medical College, Xinxiang, Henan 453003, P.R. China, Department of Radiology, People's Liberation Army 153 Central Hospital, Zhengzhou, Henan 450041, P.R. China
Published online on: July 16, 2018 https://doi.org/10.3892/etm.2018.6444
Pages: 2600-2614

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Abstract

Hypoperfusion following acute stroke is common in the infarct core and periphery tissues. The present study evaluated the efficacy of salvianolic acid (SA) on the cerebral perfusion of patients who had suffered from acute stroke using perfusion‑weighted magnetic resonance imaging (PWI) to examine the blood perfusion of the affected brain tissue prior to and following treatment. Patients who were admitted to PLA 153 Central Hospital within 72 h of acute stroke symptom onset and had a Glasgow coma scale ≥5 were randomized into two groups: SA and control groups. Patients in the SA group were administered SA 0.13 g/day for 14 days. PWI was performed for all patients at admission and post‑treatment. The National Institutes of Health Stroke Scale (NIHSS) and modified Rankin Scale (mRS) were applied to assess neurological function at admission and 3 months post treatment. A total of 159 patients were enrolled (85 patients in the SA group and 74 patients in the control group). A total of 62 patients in the SA group and 51 patients in the control group exhibited hypoperfusion in the ipsihemisphere of the diffusion‑weighted magnetic resonance imaging (DWI) lesion. In addition, relative cerebral blood volume (rCBV), a ratio of the signal value of the region of interest in the same hemisphere of the DWI lesion to that of its mirror in the PWI CBV map, decreased significantly following treatment with SA compared with the control group in patients with hypoperfusion (P=0.02), which were indicated by PWI images at admission, in the DWI lesions or the surrounding areas. Additionally, there was no significant difference in patients with normal perfusion at admission in rCBV in DWI lesions or its surrounding area between the two groups at day 15. However, a significant improvement in NIHSS (P=0.001) and mRS (P=0.005) was indicated in the SA group compared with the control at day 90. The present study indicated that SA may improve the neurological dysfunction of patients with acute stroke, which may be explained by the increased perfusion of hypoperfused brain tissues.

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